Hey John,
I think you already have a good routine.
I wouldn’t focus on one currency pair because it brings a higher risk. For example, you can EURGBP. This way you will have 4 different currencies – USD, CHF, EUR, GBP.
It is important to keep equal exposure. So if you trade USDCHF, EURUSD, and GBPUSD, you will have a higher exposure on USD.
Now, if you want you can stick to USDCHF, but then I would suggest you look for risk diversification in different time frames. Try to create EAs for all time frames. Test them and see which time frame would work best for you.
Cheers,